Hua Hin weather by month
Hua Hin runs from about 27°C in December to 32°C in April, with October the wettest month at 196 mm.
warmest month
April
32°C
coolest month
December
27°C
wettest month
October
196 mm
worst air month
January
17 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 27°C | 28 mm | 335 h | 17 |
| February | 28°C | 9 mm | 319 h | 16 |
| March | 30°C | 18 mm | 337 h | 15 |
| April | 32°C | 3 mm | 355 h | 16 |
| May | 30°C | 136 mm | 328 h | 6 |
| June | 29°C | 158 mm | 273 h | 4 |
| July | 27°C | 185 mm | 207 h | 4 |
| August | 28°C | 127 mm | 304 h | 3 |
| September | 28°C | 184 mm | 262 h | 3 |
| October | 27°C | 196 mm | 312 h | 10 |
| November | 27°C | 111 mm | 305 h | 12 |
| December | 27°C | 31 mm | 314 h | 14 |
About 3,651 hours of sun a year. Roughly 120 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.